Experimental survey of roof blown-off was undertaken to determine the main causes of roof blown-off. Data obtained from the survey and experimentation was evaluated and interpreted using statistical correlation and graphical presentation. These data were then incorporated to the model formulation, then a FOTRAN program was developed to make predictions of roof blown-off possible. From the model, it was found out that topographical location, orientation of building to wind direction, roof geometry, pitch angle all have their contributive effects on roof blown-off. The developed model was validated using data obtained from another location. Out of the 55 sets of building predicted by the model, 51 of the predictions were correct. The model is good for the purpose of planning roof design
Key words: Modeling, building orientation, roof geometry, pitch angle, topographical location.
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